2724 search results - page 426 / 545 » Optimizing Queries on Files |
113
Voted
ICDM
2010
IEEE
15 years 1 months ago
2010
IEEE
-- Temporal data are time-critical in that the snapshot at each timestamp must be made available to researchers in a timely fashion. However, due to the limited data, each snapshot...
142
Voted
SIGMOD
2003
ACM
16 years 3 months ago
2003
ACM
One of the critical deficiencies of SQL is lack of support for ndimensional array-based computations which are frequent in OLAP environments. Relational OLAP (ROLAP) applications ...
131
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DASFAA
2007
IEEE
15 years 9 months ago
2007
IEEE
Finding all the occurrences of a twig pattern on multiple elements in an XML document is a core operation for efficient evaluation of XML queries. Holistic twig join algorithms, Tw...
144
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BTW
2009
Springer
15 years 6 months ago
2009
Springer
: Very recently, Cao et al. presented the MAPLE approach, which accelerates queries with multiple instances of the same relation by sharing their scan operator. The principal idea ...
147
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STOC
2002
ACM
16 years 3 months ago
2002
ACM
We present improved algorithms for maintaining transitive closure and all-pairs shortest paths/distances in a digraph under deletion of edges. For the problem of transitive closur...